🔍 Key Concepts

• SITOR (NBDP) is a radioteletype system that sends characters in a way that reduces errors at the receiver • In digital communications, error control can involve detecting errors, correcting errors, or both • Think about what kind of process would allow a receiver to recover the original message without needing a repeat transmission

💭 Think About

• Ask yourself: in SITOR, is the system mainly checking for errors only, or actually trying to automatically correct them? • Which word in the choices best matches a digital method that sends extra information so mistakes can be fixed at the receiving end? • Which options use standard terminology you are likely to see in electronics and digital communications textbooks?

✅ Before You Answer

• Make sure the phrase you choose is a real, commonly used term in digital communications, not something that just sounds technical • Confirm that the term you pick logically describes a process of handling errors in transmitted data • Eliminate any option that refers to something not typically associated with radio teletype or digital data transmission terminology